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Thread: Is it possible to look into our Pre-historic earth by traveling to the future?
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Sep 5th, 2009 12:40 AM
#31

Originally Posted by
Deal-lon
If you guys really wanted something to "warp" your brain, consider that the universe is the shape of a torus (donut shaped, with a hole in the centre), a theory which has lately been picking up supporters due to the latest models of the universe. Now light travels in a straight line, and the universe is curved into the shape of a donut. This means that light travels in a straight line in the "torus" and curves back around on itself. This means that given time (or now for that matter, we just need the technology to see it) we may actually be looking at our own galaxy in its primordial cosmic state when we look out in the sky. This means that the OP doesn't need to travel faster than the speed of light, he just needs to wait for the photons to travel right back around the universe to earth and you end up seeing a mirror image of the planet as it appeared billions of years ago. Given this logic, with light constantly traveling the length of the torus, we may see a constantly changing Earth, solar system or galaxy depending on our technology.
That's awesome, I had totally forgotten about the doughnut universe theory.
For those interested, here's more info Link1 Link2
I had also forgotten about the behavior of black holes. If I remember correctly, The black hole's gravity is so massive that it can bend light. The escape velocity of black hole is faster than the speed of light.
More on blackholes: I have a HDDVD of NOVA | Monster of the Milky Way | PBS If anyone wants to know more about blackholes (visually) I recommend this video
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